== sanity test 184c: Concurrent write and layout swap ==== 23:27:28 (1784777248) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 3.7906 s, 6.1 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 6.51095 s, 6.3 MB/s ref file size: ref1(23068672), ref2(40894464) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 7.07395 s, 3.3 MB/s Copied 966656 bytes before swapping layout...